<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>BMI指数</title>
	</head>
	<body>
		<p>身高：</p>
		<input id="n1" type="text"/>
		<p>体重:</p>
		<input id "n2" type="text" />
		
	</body>
</html>
